Tool post or holder for metal-working machines, such as lathes, planing-machines, shaping-machines, and the like.



. C. L. LAUREAU.-

TOOL POST 0R HOLDERFOR METAL WORKING MACHINES sucH AS LATHES, PLANING MACHINES.

-$HAP|NG MACHINES, AND THE LIKE APPLICATION FILED 056.31, 19!?)- 1,259,53l. Patented Mar. 19. 191&

3 SHEETS-SHEET I.

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Hbborney C. L. LAUREAU. TOOL POST 0R HOLDER FOR METAL WORKING MACHINES SUCH AS LATHES, PLANING MACHINES,

SHAPLNG MACHINES, AND THE LIKE.

APPLICATION FILED DEC.3I. I915- 1,259 1 Patented Mar. 19, 1918.

3 SHEETS-SHEET 2- c. L. LAUREAU. TOOL POST 0R HOLDER FOR METAL WORKING MACHINES SUCH AS LATHES, PLANING MAGHiNES.

SHAPING MACHINES, AND THE LIKE.

APPLICATION FILED DEC.3I. 1915.

1,259,531 Q Patented Mar. 19, 1918.

3 SHEETS-SHEET 3.

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CHARLES LOUIS LAUREAU, 0F PARIS, FRANCE.

TOOL POST OR HOLDER FOR METAL-WORKING MACHINES, SUCH AS LATI-IES, PLANING- 'MACHINES, SHAPING-MACHINES, AND THE LIKE.

Specification of Letters Patent.

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Application filed December 31, 1915. Serial No. 69,631.

To all whom it may concern:

Be it known that I, CHARLES Louis LAUREAU, citizen of the Republic of France, residing at 214 Rue de la Convention, Paris, in the Republic of France, have invented new and useful Improvements in Tool Posts or Holders for Metal-Working Machines, Such as Lathes, Planing-Machines, Shaping- Machines, and the like, ofwhich the following is a specification.

This invention relates to improvements in tool post or holder for l'athes, planing machines, shaping machines and like metal working machines, the object being to prevent the cutting tools thereof chattering or digging into the work during the cutting "operation, and permit the cutting angle of the tool being adjusted to accord with the character of the work without the necessity of removing or grinding the tool.

The invention will be fully described hereinafter with reference to the annexed drawings in which:

Figure 1 shows a lathe equipment embodying the present invention.

Figs. 2 2, 33 and l4= illustrate three different positions of. the improved equipment showing the variations of the cutting angle,Figs. 2 3 and 43 being respectively sections of the tool taken on lines A A, B and C C of Figs. 2, 3 and 4.

Figs. 5 and 6 show two modified forms of the equipment applied respectively to a planing machine and to a shaping machine.

Figs. 7 and 8 are a side elevation and end view of the improved equipment forlathes, planing machines and the like which prevents chattering and engagement of the tool in the piece to be Worked, the arrangement being such that the cutting angle of the tool cannot be modified without grinding the same.

The present invention consists essentially in combining with the tool holder carriage provided with slides, enabling its movement during the operation, a tool connected to said carriage so as to have its cutting edge turned toward the opposite side of the carwith the plan of the carriage slides, and

inclined with relation to the plan of the slides, the connection between the tool, the inclined faced block and the carriage being such that it is possible to cause the inclined faced block to pivot about itself between the tool and the carriage, so as to vary the cutting angle of the tool, without, removing said tool from its holder and without modifying the angle of its cutting edge.

7 Referring to Fig. 1 which illustrates a form of theimproved equipment for lathes, the equipment comprises an inclined faced block 1 which rests upon the carriage b of conventional form. Y

The tool a is fixed upon the block 1 parallel with the inclined face thereof by means of a slotted support 2.

The assemblage (l, 2) is fixed to the carriage in such a manner that by a very simple manipulation the inclined faced block 1 may be pivoted between the support 2 of the tool and thecarriage; this result is obtained by means of a single-bolt the shank 3 of which passes through parts 1 and 2 perpendicularly to the inclined face of the block 1 and the head 4 of which is capable of oscillating about its geometrical axis in the T shaped slot of the carriage in which it is mounted. To afford the desired pivotal movement to the bolt, its head 4 is made of spherical formation and is engaged in a bushing 5 which fits the slot and is provided with a spherical cavity having a conical opening or mouth adapted to allow of the free movement of the head and shank of the bolt. The shank 3 of the bolt passes through an elongated hole 6 in the block 1. It will be readily seen that if the tool a is arranged in the support 2, so that its cutting edge is turned toward the top, and if the tool is brought into contact with the work so that the contact point is at the level of the axis thereof, as in the position illustrated in Fig. 1, and the work is rotated in .the direct-ion of the arrow 3 which is the nut 17 ofthe bolt, and topivotthe inclined 1 faced block 1 between the supportQ, and the carriage'b. J

Referring to Figs. 22, and 4 4*, it will be seen that for the normal position i of the1block 1 (Fig. 2), the cutting angle of the tool is represented by 0:. If the block 1 is pivoted or turned-to the position shown in .Fig. 3 the ,cutting angle becomes equal to. 6 oc and likewise, if tllQIblOCk l -is pivoted in the opposite direction,'as shown in Fig. 4, the cutting angle becomes equal to z.

As soon as theblock .1 :has been set. to give the tool the desired cutting .angle,-..,the nut- 7 is tightened soas'tofirmly secure'the parts 1 and 20m the carriage b; The pivotal movement of the...in clined block allows of the .tool being inclined in certain lathe operations so that its heel is disengaged, for instance during screw cutting operations or the cutting of grooves accordingto circles: :in the. work. on thetable. Finallyythe' inclined block owing tothe provision of elongated. hole v6. therein, may

be moved toward or away from the work to rapidly adjust the cutting edge to the required height. .7 i -Fi'gs. 5-and 6 show the invention applied respectivelyto a planing. machine, and. a shaping machine. The means for securing the tool on the tool holder carriage above described: (see F-ig. 1) .could be used in connection with the-planing machineand shaping machine, but two other. fixing .means have been illustrated by way ofexample.

In Fig. 5 which refers toa planing: ma-

chine, the vertically Imovable .tooluholder carriage is designated by Sand theinclined faced block by 9. The tool 10 is secured directly on the inclined face of the said block by meansof a sliackle llvthe heel 11 of which is located in theusual T shaped 55' i in the nut formed in the head of theshackle presses upon the tool :to assure its fastening. Toadjust the cuttingangle,.. thescrew slot of the carriage 8. Ascrew 12 engaged is unfastened and the block9. .is .pivoted between the legs of the shackle in the proper direction. J

In Fig. 6-, which refers to. a shaping machine, the verticallymova-ble tool holdercarriage is designated by 13, the inclined faced block by 14 and the tool by 15. The latter is secured directly on the inclined face of the block by means of a slotted member the the tool in the slot 19 of the said member.

I To adjust the cutting angle, it is only necessary-to infasten. the screw 18 and to pivot the block 14 in tlie proper direction abou the slotted member.

nThe construction of equipment shown in Figs. 7;and 8 nay be used on lathes, planing machines and the like but. differs from .those previously. described in that it does not allow of the cutting angle being changed without grinding the tool. The tool 20 'is secured .byLf-astening screws in the inclined isibe'z i ofthe bleekeej and the latteris fixed on the toolholdercarri'agei23fby means of fasteningshackle 24 and abolt 2 5 the head of whicliisengaged in theQT/sli'aped slot .Of the. carriage. fWith this arrangement the tool holder a d the carifiage'are -also connectedso as toinsure the desired obliquity of the tool. and theparallel .movementof the slides in order to avoid tlie tool chattering or 'digging intqthe .work. 4

- m rs 'p'f a a i claimant-l n can be applied to other metal working ma.

chines- I l laying new described my invention, what I claim as new and desire to secure by Let-- ters Patent is;

1. A tool foriinetal viforking machines such as llaithesl, iplanin'g chine .shaping lfike nachines, compris ng. in comb nation a block having an inclined face,,ineans for fixing said block to the tool holder, c,arr iage,-and means for 7 connecting the tool to{ said block in such a manner that the, tool inclination intersects ,the plane of movementfof thetool slide'and -,the ,face of the to ol looking toward the car- I riage is zalw ays kept parallel to the inclined face: of theblock, substantiallyas described U and for the purpese y set forth.

2. A tool ost or llOldGIfl fOlf metal working mach n es such, as lathes, planing machines, shaping nachines an dlike machines. compr s ng 'infco nbinat on ablock having an inclined face,means for fixing Qsaid block .to the to ol holder carriage, and means folqfixingtlie tool directly against. the. inli fa of the bl k, s bst tia y as d scribed and for the purposeset forth.

3. Atoolpost or holder. for metal work- .ing machines such as lathes,'"plani ng machines, shapingmac'hines and like machines comprising in combination a block having an inclined face, means for removably connecting said block. t0 ;t he tool holder carriage so as to enable the block to pivot about itself,

and independent meansfor. fixing the tool directly against the inclined face of the block in such a manner that the tool inclination intersects the plane of movement of the tool slide, substantially as described and for the purpose set forth. 7

4. A tool post or holder for metal Working machines such as lathes, planing machines, shaping machines and like machines comprising in combination a block having an inclined face, and means for removably connecting and fastening together the tool, the said block and the carriage in such a manner as to enable the block to pivot about itself between the carriage and the tool and to enable the tool inclination to intersect the plane of movement of the tool slide, substantially as described and for the purpose 15 CHARLES LOUIS LAUREAU.

Witnesses: ANTOINE LAvoIx,

CHAs. P. PRESSLY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

